<div class="input-group input-group-sm">
  <select name="nodeAvailability" class="selectpicker form-control" ng-model="$ctrl.availability"
    ng-change="$ctrl.onChange()">
    <option value="active">Active</option>
    <option value="pause">Pause</option>
    <option value="drain">Drain</option>
  </select>
</div>